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Abstract

A multichannel acousto-optic Bragg cell was made by the joining of
acousto-optic cells that have the shape of symmetrical trapezoidal
prisms. This acousto-optic Bragg cell has an aperture length equal
to the sum of its component acousto-optic cells but has an aperture
time equal to that of each acousto-optic cell. We tested the
performance of the multichannel acousto-optic Bragg cell by joining six
TeO2 acousto-optic cells together with 300-µm gaps
between one another. The holographic fringe data prepared by
computer were divided into six equal segments. Each data segment
was again divided into six equal parts and then fed into the
corresponding acousto-optic cell. The holographic images were
reconstructed by the periodical illumination of a green (λ = 0.5145
µm) pulse laser beam onto the multichannel acousto-optic
Bragg cell. The reconstructed images are sharp and clear. This
indicates that the multichannel acousto-optic Bragg cell is working
properly.

References

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